I am at my wits end with this and am looking for some assistance. I was using the measure tool and it was displaying in decimal degrees as I wanted. Then I changed it to meters temporarily and then wanted to go back to decimal degrees, but no matter what I do I can't get it back. I followed these instructions from Arc desktop help online Specifying a coordinate system—Help | ArcGIS Desktop:
and my data frame is set to display in decimal degrees, but the measure tool is still displaying meters. What am I missing???

